cut a rabbit in half and call it dinner
A colloquial way of expressing one's desire to end the argument or story short.
The E: you've talked for 20 minutes and you've only gotten through two of your ten points. How much longer are you going to take?
The D: Well, to cut a rabbit in half and call it dinner, the gist of the story is that I had duck for lunch today.
The D: Well, to cut a rabbit in half and call it dinner, the gist of the story is that I had duck for lunch today.